The Appendicular Skeleton Salt Lake City Community College Human Anatomy Laboratory
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The Appendicular SkeletonSalt Lake City Community CollegeHuman Anatomy Laboratory
THE SKELETAL SYSTEMThe Appendicular Skeleton
2 pairs of limbs and 2 girdles Pectoral (shoulder) girdle attaches upper limbs Pelvic (hip) girdle secures lower limbs 3-Segmented limbs
Upper = arm Arm Forearm Hand
Lower = leg Thigh Leg Foot
Pectoral Girdle(Shoulder Girdle)
Clavicle – anterior: collar bone Scapula – posterior: shoulder blade
Scapula
Glenoid cavity articulates with the humerus
Acromium articulates with clavicle
Coracoid process projects anteriorly
Upper extremity
Arm or Brachium = upper arm Between shoulder
and elbow (humerus) Forearm or
Antebrachium Radius & ulna
Hand includes: Wrist (carpus) Palm (metacarpus) Fingers (phalanges)
Arm Humerus is the only
bone Head of humerus fits
into glenoid cavity of scapula
Distal & medially, trochlea articulates with the ulna
Distal & laterally capitulum articulates with the radius
Medial & lateral epicondyles
Right humerus, anterior view
Right forearm bones, anterior view
Hip bone (os coxae): 3 separate bones in childhood which fuse
Ilium
Ischium
Pubis
Lower limb
Thigh: femur
Leg (lower leg)TibiaFibula
Foot
Right femur, anterior view
Right lower leg, anterior view
Right foot, superior (dorsal) view and inferior (plantar) view
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